Preparation and characterization of Ti3SiC2 powder

被引：47

作者：

Li, H ^{[1
]}

Peng, LM

Gong, M

Zhao, JH

He, LH

Guo, CY

机构：

[1] Univ Sci & Technol China, Chinese Acad Sci, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Anhui, Peoples R China

[2] Univ Sci & Technol China, Chinese Acad Sci, Dept Mech Engn & Mech, Hefei 230027, Anhui, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2004年 / 30卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Ti3SiC2; X-ray diffraction; pressureless sintering in vacuum; composition optimization;

D O I：

10.1016/j.ceramint.2004.01.009

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Pressureless sintering in vacuum was applied to synthesize Ti3SiC2 from elemental powders of Ti, Si and C. Based on the phase compositions and purities of the products obtained by X-ray diffraction, the elemental powders composition and sintering condition were optimized. It was found that the sample sintered at 1450degreesC for 240 min from a mixture of 3Ti/Si-1.75/2C (molar ratio) contained Ti3SiC2 with the volume fraction as high as 93%. It was proposed that loss of Si through gaseous vaporization and contamination of C might be the main obstacles against obtaining high-purity material by this way. (C) 2004 Elsevier Ltd and Techna S.r.l. All rights reserved.

引用

页码：2289 / 2294

页数：6

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